* {
    padding: 0;
    margin: 0;
}
.fl {
    float: left;
}
.fr {
    float: right;
}
body, html{
    width: 100%;
    height: 787px;
}
a {
    text-decoration: none;
    color: black;
}
ul {
    list-style: none;
    
}
.pa {
    cursor: pointer;
}
.clearfix:before,
.clearfix:after {
    content: " ";
    display: table;
}

.clearfix:after {
    clear: both;
}